Electric igniting device for gas-burners.



DE FORREST P. FULLER. ELECTRIC IGNITING DEVICE FOR GAS BURNERS.APPLICATION FILED MAR.12,1915.

1,178,510. L Patented Apr. 11,1916.

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lu 1 1J llilllhy THE COLUMNA PLANOGRAPH co.. WASHING-rom n. c.

DE FORREST P. FULLER.

ELECTRIC IGNITING nEvlcE Foa GAS BuRNERs.

APPLICATION FILED MA'R.12, 1915. 1,178,510, Patented Apr. 11, 1916.

2 SHEETS-SHEET 2.

kw? Y THE COLuMmA PLANOQRAPH co., WASHINGTON. D. c.

y with the admission of gas to the burner and DE FORREST I. FULLER, OFDENVER, COLORADO.

ELECTRIC IGNITING DEVICE FOR GAS-BURNERS.

Specification of Letters Patent.

Application filed March 12, 1915. Serial No. 14,023.

To all w wm t may concern Be it known that LDE FonREsT P. FULLER, acitizen of the United States of America, residing at the city and countyof Denver and State of Colorado, have invented a new and useful ElectricIgniting Device forr yGas- Burners, of which the following is aspecification.

This invention relates to improvements in electric igniting means forgas burners, and more particularly the gas burners of cooking ranges.

The object of the invention is to provide a sparking device inconnection with a gas burner, which is operated simultaneously by thegas admitting means. Further, to provide an electric sparking deviceconnection with a gas burner, comprising a fixed and a movable sparkpoint in circuit with a source. of power, the said movable point beingoperated by the turning of the stem of the gas valve to bring it incontact with the fixed point to produce a spark whereby the gas isignited, the saidy movable point being automatically restored to itsnormal position immediately after the spark is produced. Further, toprovide. an electric sparking device of thischaracter which is simple inconstruction and which can be easily applied to burners as at presentconstructed. These objects are accomplished by the mechanism illustratedin the accompanying drawings in which:

Figure 1 is a plan view illustratingthe supply pipe and two burnerssuchas are used upon the ordinary gas ranges 1n connection with theimproved ignitings device, one of the burners being partly broken away.Fig. 2 is a side or edge view of one of the burners with the sparkingdevice secured thereto. Fig. 3 is a vertical sectional view through theburner and longitudinally through the sparking or igniting device, whichis connected therewith. Fig. 4 is a vertical sectional view through thegasl supply pipe and the pipe connected therewith and with thc burnershowing' the operating rod and the form of the valve seated connectionbetween the supply pipe and the pipe leading to the burner. Fig. 5 is afront end view of the valve seated connection. Fig. 6 is a rear end viewof the same. Fig. 7 is a transverse sectional view thereof. Fig. S is alongitudinal sectional view of the slidable pole which is operated bythe gas valve stem to produce a spark. Fig. 9 is an end view of thehousing in which is slidably mounted the rod carrying one of the sparkpoints or contacts. Fig. 10 is an end view of the extension having theignition chamber and the flame nozzle. And Fig. 11 is a diagrammaticview showing the sparking device in circuit with a battery.

Similar letters of reference refer to similar parts throughout Vtheseveral views.

Referring to the accompanying drawings:

Patented Apr. 11, 1916.

The numeral 1 indicates the gas supply pipe y of an ordinary gas range,Q. the burners and 3 the pipes connecting the burners and the supplypipe. The burners shown are of a style in common use and the pipes 3 areintegrally connected therewith, their ends which connect with the gassupply pipe, being provided with the usual valved air inlet members 4.The supply pipe. is provided with short internally threaded nipples 5and 6, the nipples 5, receiving packing boxes 7, and the nipples '6,receiving connecting members 8, which are provided. with valve seats 9,in their threaded ends, with packing boxes 10 in line wth the valveseats, and with chambers 11, `which communicate with the valve seats,the forward end walls of said chambers being provided with outletVopenings 12, that part of the said connecting member beyond itsthreaded end being preferably elliptical in cross section to betteryprovide for the packing boxes 10v and chambers 11, as will be understoodby reference to Fig. 4;.

Each pair of packing boxes 7 and 10, are

in axial line, the numbers of such pairs of packing boxes correspondingto the number of burners, as will be understood. As the ignitingmechanisms are identical, a description of a single burner and itsigniting mechanism will suflice.

A valve stem 12A passes through the boxes 7 and l0, the outer end ofsaidstem being provided with a knob 13, while its inner end ispreferably threaded and enters a threaded aperture in the end wall of achamber 14, which forms the termination of the pipe 3, and connects thesame with the burner.

The valve stem 12A carries a plug valvel,

which normally rests upon the seat 9, of the .connecting member 8, andthus cuts ofi'the which is internally threaded and that portion of thevalve stem which passes through the gland is also threaded, so that whenthe stem is turned in one direction, the'valve is moved ofi7 of or awayfrom its seat and when turned in the opposite direction, the valve ismoved against the seat.

The inner end portion of the valve stem carries a dog 17, of the styleshown in Fig. 3, the object of which will be hereinafter set forth. Thevalve stem and its dog form the operating means for the improvedsparking device, which is arranged and constructed in the followingmanner: The inner wall of the chamber 14 is provided with a threadedaperture 1S, into which one end of a tubular housing 19 is screwed. Theend of this housing which enters the wall of the chamber carries athreaded plug 20, which is provided with a valve seat 21, and a wall ordiaphragm 2-2, is formed in the housing, which is provided with acentral rectangular guideway aperture 23, and with other apertures 24,for the passage of gas. The outer end of the housing is formed with anannular shoulder 25, and a union 26 is slipped over the housing andagainst the shoulder 25, before the housing is Vscrewed into the wall ofthe chamber 14. To the outer end of the housing 19 is coupled anextension 27, having an ignition chamber 28, which terminates in anozzle 29, which curves up and over the adjacent edge of the burner inposition to discharge a jet of flame upon the top of the burner, as willbe hereinafter set forth. The lower' side of the extension has athreaded nipple upon which a. cap 30 is screwed, the nipple permittingaccess to the ignition chamber when the cap is removed.

The union 26 connects the extension 27 to the housing 19, as the nozzle29 would prevent the screwing of the housing into the wall of thechamber 14, if the extension were an integral part of said housing, aswill appear by reference to Fig. V3. The extension is also provided witha wall or diaphragm 31, similar to the diaphragm 22 in the housing 19,which has a rectangular guideway aperture 32, in axial line with theguideway aperture 23 in the said diaphragm 22, and apertures 33, for thepassage of gas. In these guideway apertures is slidably mounted a rod34, which is rectangular in cross section, the forward end of whichextends into the ignition chamber. The rear portion of this rodcomprises a section 35, which is hinged to the rod so as to normally liei. line with the same, or on a horizontal plane, and the hinge jointpermits the section 3 be swung upwardly only. A bla'de spring 36 issecured to the section at one end and the other end thereof bears uponthe adjacent end of the rod and this spring normally holds the sectionin a horizontal position, as shown in Fig. 3. The same result isobtainedhby securing the spring to the rod, its free enc bearingupon thehinged section.

The under side of the hinged section 35 is provided with a catch 37,which is adapted to be engaged by the dog 17, on the valve stem 12A,when the same is turned to admit gas to the burner, wherebyT the rod 34is slid forward. The rod is provided with a collar 38, between. whichand the diaphragm 31 is interposed a .coil spring 39, which surroundsthe rod 34, and the said rod is pro- -vided with a plug valve 40, whichis normally held upon the seat 21 by the coil spring 39. The rod 34 hasan axial passage 41, which extends from near its rear end to within ashort distance from its forward end, and the ends of this passage openout through the under side of the rod, as shown most clearly in Fig. 8.The forward end of the rod is formed with an axial hole in which issecured in any suitable way, a socket member 42 ofany suitable non-con-`ducting material and into this socket is screwed a metal spark point orcontact 43. A plug 44, of any suitable non-conducting material isscrewed into a threaded aperture inthe extension 27, in axial line withthe rod 34, and into the plug 44 'is screwed a spark point or contact45, the plug 44 being adjustable to move the spark point 45 to theproper position to cooperate with the spark point 43.

The faces of the catch 37 and of the dog 17 are so inclined, that whenthe stem 12A is turned, kthe dog 17 exerts a slight down pull on thehinged section 35, at the same time that the rod y34 is being slidforward. Whereas if the faces of the dog and catch were verticallyarranged or inclined in thc opposite direction, the pressure of the dogagainst the catch might swing the section 35 up and the dog would thusescape from the catch without moving the rod forward. The dog isarranged to push the rod forward far enough to cause its spark point 43to touch -the Vpoint 45, when the stem 12A has been given approximatelya quarter rotation, and at the same instant the dog escapes the catchand the spring 39 restores the rod to its normal position. Upon reverserotation of the stem 12A, the dog engages the catch and lifts thesection 35 by which it is permitted to pass the catch.

In admitting gas to the burner, it may be necessary to turn the valvestem a complete rotation or even more, to admit a suiiicient low of gas,but after escaping the catch the first time, the dog will be moved farenough to one side of its operative position by the unscrewing action ofthe valve stem to be out of line with the catch and will therefore failto operate the rod after the first forward movement thereof, thusavoiding unnecessary sparking.

Insulated circuit wires A and B, which are preferably bound together ina single insulating wrapper C, are passed inthrough an opening in theair intake 4 and through the pipe 3 to the adjacent end of the rod 34,where they are inserted in the passage 41, in the said rod, and outthrough the forward end of the said passage. The ends of the wires arethen stripped of their insulation, and the wire A is secured in anysuitable manner to the spark point 43 and the wire B is in like'mannersecured to the spark point 35, the arrangement of the housing and itsextension being such as to admit of the wires being easily secured totheir respective points. The opposite ends of the wires connected witheach sparker are connected respectively to the poles of a suitablebattery or to a plug which may be screwed into an ordinary electriclight socket.

In operation, the valve stem 12A is turned to withdraw the valve 15 fromits seat, whereby gas is admitted through the pipe 3 to the burner.Simultaneously `therewith the dog 17 engages the catch 36 and moves therod 34 forward, whereby the valve 40 is moved away from its seat,permitting a low of gas though the housing. IVhen it reaches theposition where its point 43 touches the point 35, a spark is produced bythe current passing through the wires A and B, by which the gas in theignition chamber is ignited and passes out through the nozzle 29, in ajet of ame, which ignites the gas escapm ing through the perforations inthe burner, Simultaneously with the sparking the dog 17 escapes thecatch 36, and the rod 34 is thrown back by the spring 39, therebyseating the valve 470 and cutting` of the supply of gas from the housing19.

WVhen the burner is arranged like the right hand burner in Fig. 1 therod 34 is moved to the left when the valve stem is turned to admit gasand to accomplish this the valve stem must lie beneath the rod 34. Whenthe burner is arranged like the left hand burner in Fig. 1, the rod-34must be moved to the right when the valve stem is turned to admit gasand to accomplish this the valve stem must lie above the vrod 34. Toaccomplish this it is only necessary to turn the valved connectingmember S, over so that its stufiing box 10 lies uppermost and thenconnect the pipe 3, the same as in Fig. 4. In this way the valve stem ispositioned to lie above the rod 34.

Having described my invention, what I claim as new and desire to secureby Letters Patent, is:

1. In an electric igniting device for gas burners, the combination witha burner of a hollow support attached thereto, having a fixed and amovable contact in circuit with an electric power source, means foradmitting gas simultaneously to said burner and to said hollow support,and means connected with the gas admitting means for causing lsaidmovable contact to engage ksaid fixed ing a hollow member' attachedthereto, of

means for admitting gas simultaneously to said burner and hollow member,electric igniting means in said hollow member and operableby the gasadmitting means, for producing a spark simultaneously with the admissionof gas to the burner and means for directing said ignited gas over thetop ofthe burner. l

3. In an electric igniting device for gas burners, the combination witha burner having a hollow member, of means for admitting gassimultaneously to said burner and hollow member, electric igniting meansin said hollow member comprisingl a fixed and a movable spark point incircuitkwith a power source, means connected with the gas admittingmeans for advancing said movable spark pointy to contact with the fixedpoint to produce a spark whereby the gas in said hollow member isignited and passes out over the top of said burner, and means forautomatically restoring the movable spark point to its normal position.

4. In an electric igniting device for gas burners, the combination witha burner having a tubular housing connected therewith,

ot' means for admitting gas to said burner and housing, electricigniting means in said tubular housing comprising a fixed contact and aslidable rod having a contact, circuitv wires extending through saidslidable rod and connected vat one end with a power source and at theopposite ends with the iixed and slidable` contacts respectively, meansconnected with the ygas admitting means for sliding said rod to causeits contact to engage the fixed contact thereby vto produce a spark toignite the gas in said housing from whence it issues in a Iiame abovethe top of said burner, and means for returning the rod to its initialposition.

5. In an electric igniting device for gas burners, the combination witha burner, of electric igniting means connecting therewith, means foradmitting gas tov said burner, means for admitting a portion of said gasto said igniting means, means connected with the gas-admitting means foractuating the igniting means to produce a spark whereby the gas isignited in the means by which it is admitted to the igniting means,whence it issues in ay iiame over the top of the burner.

6. In an electric igniting device for gas burners, the combination witha supply pipe, a burner and a pipe connecting the same and the supplypipe, said supply pipe having a valve seat outlet into the pipe leadingyto the burner, of a valve for normally closing said outlet, having astem which extends through the supply pipe and the pipe leading to theburner, the outer end of which carries a knob, while its inner endenters a bearing in said burner, said rod having a threaded connectionwith the supply pipe; a housing threaded to and communicating with theburner pipe, a rod slidable in said housing, a valve on said rod fornormally closing communication between the housing and burner pipe, adog on said valve stem for sliding said rod simultaneously with theadmission of gas to the burner whereby the valve on said rod is movedaway from its seat to admit gas to said housing, a contact on saidslidable rod and a cooperating fixed contact in the housing in linewith'the movable contact, said contacts being in circuit with a powersource, said dog being arranged to escape the slidable rod when the samehas been moved to cause its contact to touch the iixed contact, therebyto produce a spark which ignites the gas in said housing, said housingbeing arranged to convey the ignited gas over the top of the burner, anda spring for restoring the rod to its normal position simultaneouslywith its escape from the said dog, whereby its valve closescommunication between the housing and the burner pipe.

'7. In an electric igniting device for gas burners, the combination witha burner and its supply pipe, ot a housing connected to andcommunicating with said pipe and having a nozzle extending over theadjacent port-ion of said burner, a fixed and a slidable contact in saidhousing in circuit with an electric power source, means for admittinggas to the burner and for simultaneously advancing said moving contactinto sparking relation with the fixed cont-act, whereby gas in thehousing is ignited and passes out through the said nozzle over theburner, means for pushing the movable contact away from the ixed contactinstantly upon the producing of a spark, and means for opening andclosing communication between the housing and the burner pipe.

S. In an electric igniting device for gas burners, the combination witha burner and its supply pipe, of a tubularhousing leading out oi' saidsupply pipe and terminating in a nozzle which extends above the gasburner, a iixed and a movable sparking point in said housing in circuitwith an elec tric power source, means forming a part of the gasadmitting means for advancing the movable point into sparking relationwith the fixed point, whereby gas in the housing is ignited and passesout of the nozzle over the burner, means for restoring the movablesparking point to its normal position instantly upon the production of aspark, and

means for opening and closing communication between the housing and thesaid burner supply pipe.

9.. In an electric igniting device for gas burners, the combination witha burner and its supply pipe, of a tubular housing leading out of thesaid supply pipe and terminating in a nozzle which extends over theadjacent portion of said burner, a rod slidably mounted in said housing,having a, spark point at its forward end and a spring controlled hingedsection at its other end which extends into said supply pipe, a fixedspark point in the housing in line with the movable point, circuit wiresextending through said slidable rod and connected with a power sourceand with the respective spark points, a valve on said slidable rod fornormally closing communication between the housing and burnersupplypipe, said housing having ay valve seat therefor, a catch on thehinged section of the said rod, a valve stem extending through saidpipe, a dog on said stem for engaging said catch to slide said rod tobring its point in sparking relation with the fixed point, said dogbeing adapted to escape the catch simultaneously with the production ofa spark, a spring for instantly reversing the slidable rod, a gas supplypipe connected with the burner pipe and having a valve seated connectionand a valve on said valve stem for normally closing the seat in saidconnection, the slidable rod beingmoved simultaneously with theadmission of gas to the burner.

l0. In an electric igniting device for gas burners, the combination witha gas supply pipe, a. burner and a pipe leading therefrom, of aconnecting member uniting the supply pipe and the burner pipe having avalve seat, a. packing box in line therewith and a chamber communicatingwith the valve seat, having lan outlet which forms communication withthe burner pipe, a stem extending through the supply pipe and throughthe valve seat and packing box in said connecting member and through theburner pipe to the burner, a valve on said stem which normally closesthe seat in said connecting member, a housing leading out of the burnerpipe and terminating in a nozzle which extends over the adjacent portionof the burner, an electric sparking device in said housing and means onthe valve stem for operating said sparking device simultaneously withthe admission of gas to the burner, and means of opening and closingcommunication between the housing and burner pipe, said valve stemhaving a threaded connection with the said gas supply pipe.

11. In an electric igniting device for gas burners, the combination witha burner of electric igniting means attached thereto,

means for admitting gas simultaneously to the burner and to the ignitingmeans and means connected with the gas-admitting means for operating thesaid igniting means simultaneously with the admission of gas to theburner.

12. In a device as specified, the combination with a burner and itssupply pipe, a housing leading from the pipe, a separable nozzleconnected to the housing and extending over the adjacent portion of theburner, a fixed spark member in the housing, a slidable spark member inline with a iiXed member, said members being in circuit with an electricpower source, a valve on said slidable member for normally closingcommunication between the housing and pipe, and a spring for holdingsaid slidable member in valve closing position, of means for admittinggas to theburner and means connected With the gas admitting means foradvancing said slidable member into sparking rela-` tion with the fixedmember simultaneously With the admission of gas to the burner.

In testimony whereof I aliX my signature in presence of two Witnesses.

DE FORREST P. FULLER. Witnesses:

G. SARGENT ELLIOTT, ADELLA M. FOWLE.

Copies of this patent may be obtained for ive cents each, by addressingthe Commissioner of Patents, Washington, D. C.

